图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
雾化与喷雾
影响因子: 1.737 5年影响因子: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 2.2

ISSN 打印: 1044-5110
ISSN 在线: 1936-2684

卷:
卷 30, 2020 卷 29, 2019 卷 28, 2018 卷 27, 2017 卷 26, 2016 卷 25, 2015 卷 24, 2014 卷 23, 2013 卷 22, 2012 卷 21, 2011 卷 20, 2010 卷 19, 2009 卷 18, 2008 卷 17, 2007 卷 16, 2006 卷 15, 2005 卷 14, 2004 卷 13, 2003 卷 12, 2002 卷 11, 2001 卷 10, 2000 卷 9, 1999 卷 8, 1998 卷 7, 1997 卷 6, 1996 卷 5, 1995 卷 4, 1994 卷 3, 1993 卷 2, 1992 卷 1, 1991

雾化与喷雾

DOI: 10.1615/AtomizSpr.v8.i5.40
pages 547-563

ROLE OF GEOMETRIC PARAMETERS ON THE DROP SIZE CHARACTERISTICS OF LIQUID-LIQUID COAXIAL SWIRL ATOMIZERS

D. Sivakumar
Department of Aerospace Engineering, Indian Institute of Science, Bangalore 560012, India
B. N. Raghunandan
Department of Aerospace Engineering, Indian Institute of Science, Bangalore 560012, India

ABSTRACT

Measurements of drop size characteristics of liquid-liquid coaxial swirl atomizers used in bipropellant rocket engines are made for a range of flow and geometric parameters. The merging and separation process of liquid sheets which exhibits hysteresis leads to a drastic variation in the size characteristics which will have serious implications on the engine throttling. At identical flow rates through a given coaxial atomizer, the merged state may result in mean drop size nearly 40-50% larger than that in the separated state. For constant inner flow rate, the Sauter mean diameter (SMD) of the combined spray initially increases, reaches a maximum, and thereafter reduces with the outer jet flow rate. The inner jet influences the drop size distribution only at low outer flow conditions. The atomization quality of the combined spray can be improved specifically at high outer flow rate conditions by increasing the swirl intensity of the jets or by providing a positive offset to the inner orifice.


Articles with similar content:

SPATIAL DROP BEHAVIOR OF A ROTARY ATOMIZER IN A CROSS FLOW
Atomization and Sprays, Vol.22, 2012, issue 12
Han Jin Jeong, Andrew Corber, Sangsig Yun, Seong Man Choi
DYNAMICS OF NEAR-FIELD AND FAR-FIELD SPRAY FORMED BY LIQUID JET IN OSCILLATING CROSSFLOW
Atomization and Sprays, Vol.28, 2018, issue 1
Jong Guen Lee, A. Sharma
EFFECT OF AIR INJECTION CONFIGURATION ON THE ATOMIZATION OF GELLED JET A1 FUEL IN AN AIR-ASSIST INTERNALLY MIXED ATOMIZER
Atomization and Sprays, Vol.23, 2013, issue 4
Debi Prasad Mishra, Manisha B. Padwal
CHARACTERISTICS OF SPRAYS THROUGH A WALL IMPINGEMENT INJECTOR
Atomization and Sprays, Vol.14, 2004, issue 4
Takao Inamura, Terutoshi Tomoda
ATOMIZATION OF GEL PROPELLANTS THROUGH AN AIR-BLAST TRIPLET ATOMIZER
Atomization and Sprays, Vol.16, 2006, issue 4
Benveniste Natan, Shai Rahimi